I've published over 100 books - and that is divided about 50/50 adult and young adult. Lately, I have been writing more YA, which is such a great genre to write it. I don't have a favourite (I usually say it's the last book I've written), but certain books do stick in the mind. My very first YA novel, The Children of Lir, will always be special to me, and, of course The Alchemyst because it was a series I'd wanted to write for ages.

A good story is always a journey. It is about taking the journey, the people the hero meets along the way and how they change him or her. All stories are journeys. They don't have to be shocking or outrageous: they simply have to be interesting.

we are nothing more than the sum of our memories and experiences

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The people that you work with are, when you get down to it, your very best friends.

I published my first book in 1982 - a collection of Irish folklore called Irish Folk & Fairy Tales. It is still in print today. My first young adult book was published a couple of years later, and I've been writing in both genres ever since.

But magic is really only the utilization of the entire spectrum of the senses.